MESON Chess Problem Database

Problem Display
PID: 216570 (7B/1K2p3/4k3/1Q5P/8/6P1/8/8 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1975

7B/1K2p3/4k3/1Q5P/8/6P1/8/8

#2

5 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qc6#
  • Tries
    • 1.Kb6?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kf7!
    • 1.Ba1?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kf7!
    • 1.Bb2?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kf7!
    • 1.Bc3?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kf7!
    • 1.Bd4?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kf7!
    • 1.Bg7?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kf7!
    • 1.Qc6+?
      • 1...Kf5
        • 2.Qg6#
      • 1...Kf7!
    • 1.g4?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kf7!
    • 1.h6?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kf7!
  • Keys
    • 1.Qe8!
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Qg6#
      • 1...Kd6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);P_PINP(b)
    • Vars
      • K(a);N_SPINP(b),S_FLIGHT::QAB1(B)
      • K(a);N_SPINP(b),P-FLIGHT::QAR1(B)
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